deere lt160 starts fine runs while and then surges

ronact

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my mower starts fine runs a few minutes and then starts surging .....have replaced fuel filter, air filter and spark plug......not sure if seat saftey switch is causing problem...don't think so...any ideas
 

EngineMan

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And what about the Fuel tank vent.
 

ronact

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here is an upate: cleaned out the area under the plastic shield covering top of motor in the front part.......seemed to be full off grass and rodent nest maybe.....also cleared air vent in gas tank cap........started up and ran fine this morning ...about 10 min..... hope it's fixed problem....thanks for help
 

EngineMan

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Thanks for the update, hope all go's well....:thumbsup:
 

hensoup

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  • / deere lt160 starts fine runs while and then surges
I know this is an old thread but...I have the same mower with the same problem...i have removed and cleaned the tank vent, replaced the fuel pump, fuel filter and gas cap with new from JD. Problem is getting worse...Last year it only did this when blades were not engaged. When blades were engaged or mower was under a load (pulling a garden trailer) it ran fine. This year it does it all the time. As the engine RPM's drop on the surge while cutting I all but have to stop and allow the engine to come back up to speed to continue...Ant Ideas will be welcomed.
 

EngineMan

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  • / deere lt160 starts fine runs while and then surges
How you cleaned the carb..?
 

hensoup

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  • / deere lt160 starts fine runs while and then surges
How you cleaned the carb..?

Thats next on my "to do" list. I went by JD to get a new belt and picked up a carb rebuild kit while I was there. Will do that this weekend. I looked at a couple of videos on the procedure, seems pretty straight foward. I have waited to do this cause I never have much luck adjusting them once I'm done.
Thank You for the Input ...lets me know im on the right track.
 
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